- Planetarynebulaeareatypeofisolatedgaseousnebulaepossessingafairdegreeofbilateralsymmetry.Aroundtheclusterisahugevaguediffusenebulae.Youcanseenebulaeintheclearsummersky.TheGalacticDustinCoronaAustralis:Twoblue-reflectionnebulae.Lightisunabletoescapeth...
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- Capturedincolorfultelescopicportraits,twocosmicowlsglarebacktowardplanetEarthinthisintriguingcomparisonofplanetarynebulae.Glowinginvibrantcolors,planetarynebulae,suchasthisone,representthedeathrattlesofdyingstars....
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